baber/WOPTO huggingface dataset:
Patent GB-1171315-A (GB)
Title: Improvements in or relating to the manufacture of Articles from Powdered Materials
Inventor: MARSHALL ALEC FRANK
IPC: B29C70/70
Filed: 1966-05-11
Abstract: 1,171,315. Moulding powdered materials. BIRMINGHAM SMALL ARMS CO. Ltd. 11 Aug., 1967 [11 May, 1966], No. 20791/66. Heading B5A. A method of producing an encapsulated article comprises the steps of introducing powder into a mould from suitably disposed hoppers to provide, in turn, a first layer of encapsulating material occupying the full width and length of the mould, a layer of a different core material on top of the first layer and extending to the full mould width but of reduced length to leave spaces between the ends of the core layer and mould, filling these spaces with encapsulating material to the same thickness as the core layer, precompacting all the layers, and then adjusting the mould sidewalls to the desired width of the final strip and pouring further layers of encapsulating material to completely surround the core layer, compacting the complete powder mass prior to release from the mould, and sintering the composite compact to produce the article.
Patent GB-924074-A (GB)
Title: Rocket launcher latch mechanism
Inventor: DAVIES DOUGLAS LEON
IPC: F41F3/052
Filed: 1960-06-04
Abstract: 924,074. Rocket launchers. MINISTER OF AVIATION. Sept. 14, 1961 [June 14, 1960], No. 20832/60. Classes 9 (2) and 92. A rocket launcher latch comprises a spigot 14 with limbs 20, a pivotable part 12 with a lug 23 and detent 28, and depending lugs 30 attached to which is a channelled plate 31. The spigot 14 is held within a bush 15 of launcher plate 13 by a screw 16 (see Fig. 2). The pivotable part 12 is acted upon to rotate about a pin 24 in a clockwise direction by a rat-trap type spring 27, movement being limited by V shaping as at 21. The rocket is placed in the launcher so that its rear face bears on lugs 30, thereby moving part 12 anticlockwise until detent 28 enters a peripheral groove 34 of the rocket. The electrical connections for firing the rocket are firstly via detent 28, insulated from part 12 by bushing 29, and insulated annular contacts within groove 34 to an insulated contact 35 and secondly via a spring 37 and the latch itself to the launcher plate 13. On firing, the efflux of propelling gases impinges on plate 31, thereby forcing pivotable part 12 anticlockwise with consequent removal of detent 28 from groove 34. In a modification, the detent 28 is fixed to part 12 by insulating cement and the springs 27, 37 are replaced by two superimposed leaf springs, one of which is engaged by the chamfered portion 40 of the rocket.
Patent GB-1471393-A (GB)
Title: Lighted hole assembly and ball projector for play-board
IPC: A63D3/02
Filed: 1975-05-16
Abstract: 1471393 Indoor games D GOTTLIEB & CO 16 May 1975 [10 Oct 1974] 20927/75 Heading A6H The playing surface 11 of a pin ball machine is provided with holes 12 into which a ball may drop during play, the bottom of each hole being defined by a wafer of transparent or translucent material illuminated by a lamp 70. A trigger member 30 is yieldably mounted below the wafer 20 and is provided with two fins 33, (34) Fig. 6 (not shown) which project through an aperture formed in the wafer. The weight of a ball dropping onto the fins effects downward movement of the trigger member 30, whereby a switch 40 is closed to energise a solenoid 50 thus causing a pivotally mounted finger 60, which is mechanically connected to the solenoid, to move upwardly through the aperture in the wafer and eject the ball from the hole.
Patent GB-142003-A (GB)
Title: Improvements in or relating to parachute flares to be dropped from aircraft
IPC: F42B10/56
Filed: 1919-08-26
Abstract: 142,003. Wiley, S. Aug. 26, 1919. Pyrotechnic devices.-Relates to flares to be dropped from aircraft of the kind comprising a flare composition and a parachute at opposite ends of a casing from which the parachute is expelled by means of an explosive charge ignited by a fuse which also ignites the flare. The invention consists mainly in the provision of a fuse which can be set for various times depending upon the height of the aircraft, in order that the flare may come in action at a predetermined height from the ground. As shown, the casing of the flare is made in two parts A, A<1> secured to a dividing partition B bv set-screws a and containing respectively the flare composition C and the parachute Q. The end of the flare composition is covered by a time fuse comprising a fixed part D provided with an incomplete annulus F of time-fuse composition and an inner rotatable part E carrying a spring-striker H for igniting the fuse at the moment the flare is dropped. This striker is normally uncocked and interlocked striker and a pivoted catch K<1> which is confined with a handle K by means of a knob h<1> on the by the socket E<2> on the rotatable part E. The handle is held in place by a trigger. M pivoted to the handle and engaging beneath a shoulder c<4> on the socket E<2>; and this trigger is locked by a transverse pin O. To drop the flare, the pin O is first removed, then the trigger M deflected, whereupon the flare drops off the handle and cocks the striker H. As soon as the catch K<1> is released by the socket E<2>, the striker slips away from the handle and fires a percussion cap j which ignites the annulus of time-fuse composition F through a flash passage e<2> which can be set for various times by a rotation of the part E. A yielding spring catch g stops the part E at every five seconds of setting. When set for zero, the flash passage is shut off from the annulus F, but still opposite the vent e‹ in the pointer E<0> on the part E; and thus any accidental ignition of the percussion cap j is vented off safely. After the appointed time, the annulus F transmits the flash to a charge f<1> which ignites the flare composition C; and ignition is then communicated. by a tube P to an annular charge p' which expels the parachute Q and the covering cap W at the end of the casing. The parachute is connected by cords q to a disk R attached by a stud S to a plug T which is in turn connected by a cable U to the partition B. The flame of the flare first issues through lateral holes a<0> until the heat melts the parts of the casing between these holes, when the fuse, together with the end of the casing, drops off and the flare composition is fully exposed.
Patent GB-679531-A (GB)
Title: Improvements in or relating to non-dazzling head-lights
IPC: F21V11/00
Filed: 1946-07-13
Abstract: 679,531. Vehicle lamps. CIBIE, P. July 13, 1946 [May 4, 1944], No. 21036/46. Addition to 679,162. Class 75(iv) The non-dazzling headlamp of the parent Specification is modified in that, instead of the substantially vertical screens disposed in front of the upper and lower portions of the reflector and on the outer edges of the shades, screens E, E<SP>1</SP>, E<SP>2</SP> are provided on the upper face of each shade, except the upper shade, and are inclined forward so that the extreme edges of said screens cannot be illuminated directly by the luminous beam from the light source.
Patent GB-320871-A (GB)
Title: Improvements in or relating to photo-mechanical printing cliches
IPC: G03F7/04
Filed: 1928-07-20
Abstract: 320,871. Larsen, W. R. B. July 20, 1928. Photo-mechanical printing-surfaces. - In the preparation of printing clichÚs of hardened colloids and to obtain a necessary depth without the points or lines of the clichÚ being deformed or washed away, the sensitive layer after exposure to harden the exposed parts is first developed to a small depth only, and treated with a hardening agent, before the development is continued, the process of further hardening and subsequent developing being repeated until the desired depth is obtained. The cliche is preferably dried after each hardening stage before the developing is continued. The hardening agent (e.g. formaline) may be mixed with dextrine or other thickener, and applied by a roller. A colouring matter may also be added. The process is applicable for single colloid layers sensitized to a small depth on one or both faces, or to colloid layers on opposite sides of a transparent, or opaque support. In the case of a clichÚ with two sensitized faces, the image on the one side will be sharply defined, that on the other side, if printed through the support, having a soft relief and forming the make-ready. When an opaque support is used, the counterpart image is produced by the use of reflectors.
Patent GB-1188992-A (GB)
Title: Rotary-Piston Machines
Inventor: CALUWE MAURITS JAN-BAPTIST
IPC: F01C1/344
Filed: 1967-05-05
Abstract: 1,188,992. Rotary-piston machines. M. J.-B. CALUWE. May 5, 1967 [May 6, 1966; April 4, 1967], No.21130/67. Heading F1F. A rotary-piston machine has at least one diametral vane 7 slidable radially in a cylindrical piston 4 of circular profile, each end of the or each vane having sealing rods and strips 8, 11 therein engaging with the surface 30 of a stator 2, which surface has a profile comprising arcs of circles subtending angles γ at the axis of rotation and arcs of differing Archimedean spirals subtending angles α and #, respectively. The rate of change of radius of the surface 30 with respect to the angular displacement of the or each vane within each angle # is constant and steadily incremental, or decremental, within each angle α. Lubricating oil enters a clearance gap s through an orifice 18. Sealing between inlet and outlet passages 12, 13 is effected by sealing strips 15. The profile of the surface 30 may be modified such that the circular arcs are omitted i.e. each angle γ is zero. The machine may be a pump, motor, compressor or I. C, engine, and in the lastmentioned instance a mixture of fuel and air is compressed by a similar machine before it enters the or each inlet passage, the two pistons being coupled to each other. It is indicated that the number of working chambers 1 must be odd.
Patent GB-880703-A (GB)
Title: Improvements in non-woven fabrics comprising bonded fibres
IPC: D04H1/54
Filed: 1958-07-02
Abstract: 880,703. Agglutinated fibrous fabrics. LIPACO S.A. July 2, 1958 [July 3, 1957; Oct. 17, 1957], No. 21152/58. Class 140. A non-woven fabric comprises a layer of regenerated cellulose fibres, the cellulose of said fibres having a degree of crystallinity of at least 50%, in which a substantial proportion of said fibres is bonded one to another over short lengths by coalescence. Coalescence is effected by treatment with aqueous caustic soda solution. Fibres of the requisite degree of crystallinity may be made by spinning viscose into a spinning bath having low acid and low salt concentration and which is free from zinc. As shown (Fig. 1), a layer of regenerated cellulose fibres 1, having a crystallinity of over 50% is laid on a porous moving belt 2, and passed between pairs of rollers 3, 3<SP>1</SP>; 4, 4<SP>1</SP> and 5, 5<SP>1</SP>. Aqueous caustic soda solution is run from tank 6 through pipe 7 and nozzles 8, 9 and 10 on to the layer of fibres. Excess caustic soda solution is collected in basin 11 and returned to tank 6 through pipe 12. The fibrous layer then passes between squeeze rolls 13, 13<SP>1</SP>, through bath 14 containing a solution of acetic acid for neutralization, bath 15 containing neutral wash water and drier 16. Fig. 2 shows a cross-section of non-woven fabric according to the invention, wherein the fibres retain their identity and there are areas (as at 17) of coalescence with adjacent fibres. Specification 730,226 is referred to.
Patent GB-1502770-A (GB)
Title: Optical apparatus
IPC: G06V10/10
Filed: 1974-05-14
Abstract: 1502770 Sensing bar codes &c PLESSEY CO Ltd 30 April 1975 [14 May 1974] 21216/74 Heading G4M [Also in Division G2] An optical apparatus (e.g. for scanning data in the form of regions of differing reflectivity such as bar codes) comprises a light guide of pyramidal form and formed at the narrow end with a flat truncated sensing tip to admit light, there being a lens integrally formed at the other end to concentrate the light (e.g. on to a detector). As described (see the Figure) the pyramid is right conical. The lens is integrally formed as a curved rear surface 3 and concentrates the light on a photo detector (e.g. photo diode, photo transistor). A light source 6 provides light which is directed by the guide to illuminate the surface to be read.  The guide, detector, and source may be contained in a probe suitable for hand holding. The probe may also include electronic processing apparatus and batteries. The guide may be of glass, or of transparent plastics, or of a mixture of the two.
Patent GB-276042-A (GB)
Title: Improvements in the construction and production of flexible pipe couplings
IPC: F16L33/22
Filed: 1926-05-25
Abstract: 276,042. Fraser, W. May 25, 1926. Joints with longitudinal pressure and with yielding outer part compressed; elastic-grip joints.- In hose-pipe connections of the type described in Specification 179,318, wherein a tubular portion u is provided with a bulbous end v for insertion in the pipe h and a spring-pressed taper sleeve c which surrounds the bulb v and grips the hose thereon, the tubular portion u is provided with an internally threaded union socket r, Fig. I, for attachment of the hose to an exteriorly threaded tap or cock t. In a modification, Fig. 2, the socket member r is interchangeable and is detachably secured to the tubular member u by means of a rubber washer k held in the mouth of a cup i, which is positioned between a flange a<1> on said member u and the folded-down end a<2> thereof, by means of screwed caps i<2>, p and metallic washers i<3>, is.
Patent GB-768712-A (GB)
Title: Improvements in and relating to pocket clips, for fountain pens and the like, and toarticles for use in the manufacture thereof
IPC: B43K25/02
Filed: 1954-07-21
Abstract: 768,712. Making clips for fountain pens; extruding. WAGNER, E. V. July 11, 1955 [July 21, 1954], No. 21269/54. Classes 83 (2) and 83 (4). [Also in Group XXV] A longitudinally ribbed bar 9, Fig. 4, for the use in the manufacture of pocket clip fingers for a fountain pen cap or like tubular article is produced by extrusion or casting and the clip fingers 2 are produced by cutting transverse sectional pieces from the bar. The bar can be made of aluminium or a synthetic resin. Specification 697,104, [Group XXV], is referred to.
Patent GB-1425290-A (GB)
Title: Process for prepating polyphenylphosphonates
IPC: C08G79/04
Filed: 1974-05-14
Abstract: 1425290 Preparing polyphenylphosphonates NISSAN CHEMICAL INDUSTRIES Ltd 14 May 1974 21412/74 Heading C3R A process for preparing poly-(sulphonyldiphenylene) phenylphosphonate comprises polycondensing dihydroxydiphenylsulphone and phenylphosphonic dichloride in tetrachloroethane, decreasing the viscosity of the resulting solution by adding an amount of methanol corresponding to 0À1-25% by weight of the total solvent, and adding the resulting solution to methanol in order to precipitate the poly- (sulphonyldiphenylene)phenylphosphonate.
Patent GB-1478087-A (GB)
Title: Method and apparatus for producing abrasive granules
IPC: B24D18/00
Filed: 1975-05-20
Abstract: An abrasive based on alumina or alumina and zirconia is produced by melting the oxide or oxides and rapid cooling of the melt. For this purpose, the oxide melt is disintegrated in the atmosphere of a gas which is inert towards the melt and/or by using such gases as atomising agents for the melt. The melt solidifies rapidly, and the solidified product is then processed to give abrasive grains. The abrasive produced is suitable above all for precision grinding and semi-precision grinding.
Patent GB-683000-A (GB)
Title: Improvements in and relating to dining room tables
IPC: A47B35/00
Filed: 1950-08-30
Abstract: 683,000. Furniture combinations. DYKES, Ltd., J., and DYKES, M. Aug. 24, 1951 [Aug. 30, 1950], No. 21446/50. Class 52(iii) A dining-room table is provided with a table top panel which carries on its underside an ironing board and can be reversed to bring the ironing board uppermost in combination with a flat-iron support which may be withdrawn from beneath the panel into operative position, at the same time automatically raising one end of the panel to permit the panel to be reversed manually. As shown the table top a is provided with a tiltable panel c having pins d slidable in opposed guides e in the top a. The ironing board comprises hinged parts g, f and is secured to the panel c. The flat iron support i may be withdrawn to operative position at the same time elevating one end of the panel c to enable it to be grasped and swung over to reversed position after which the hinged parts f, g of the ironing board are brought into alignment. ' The support i and the panel c are provided with cams or wedges j, h for elevating the end of the panel c and the support i may be provided with a pin k for co-operation with the ironing board f, g to lock the panel c when in inoperative position.
Patent GB-1189323-A (GB)
Title: Improvements in and relating to Measuring Apparatus
Inventor: KITCHENS WILLIAM L
IPC: H03K21/02
Filed: 1967-05-09
Abstract: 1,189,323. Digital measurement of displacement. SOUTHWESTERN INDUSTRIES Inc. 9 May, 1967 [26 May, 1966; 11 Aug., 1966], No. 21460/67. Heading G4H. The distance travelled by one body relative to another is measured by a metering wheel 20, Fig. 2, on the. first body frictionally engaged with a surface 14 of the second, the metering wheel driving an output shaft 28 carrying means to generate incremental:pulses which are used to drive a visual display unit, located at a distance, indicating the number of rotations of the metering wheel and fractions thereof. The output shaft 28 may be geared to turn 60 times to each revolution of the metering wheel. The output shaft may carry a perforated disc co-operating with spaced photo-cells to provide two waveforms displaced by 90 degrees. These are squared and applied to gates to produce forward and backward signals on separate leads for application to a counter. The counter is connected to the visual display. Indicating dials are also provided on the body 12 to indicate the positions of the shafts 22 and 28. In another form the increment pulses may be derived from a ten facet mirror 95, Fig. 8, which sweeps a beam of light over ten photo-cells arranged in an arc. Each photo-cell is composed of four parts which are differently masked so that as the beam crosses each photo-cell four different amplitudes are obtained in succession. From the order of arrival of these signals the direction of motion can be ascertained to control a counter as before. The direction discriminator is controlled by a switch so that " forwards " can be in either direction as selected. In another form the rotating mirror has 100 facets and the beam sweeps over two photo-cells which are staggered so that the direction can be determined from the signal sequence. Alternatively there may be a single mirror on the end of the shaft 28, an aligned lamp and a ring of 100 photo-cells which may be masked as above to obtain an indication of direction. In another modification, a contact disc pick-up brushes provides increment and direction signals. The signal generating means may be on another shaft remote from the body 12, the remote shaft being driven from shaft 28 through a servo-system with a reversing switch. The measuring system may be embodied in a control system for a machine tool in which values read from a punched tape are compared with the contents of the counter and a leadscrew motor driven to achieve equality.
Patent GB-692078-A (GB)
Title: Work-jogging attachments for sewing machines
IPC: D05B3/24
Filed: 1951-09-14
Abstract: 692,078. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Sept. 14, 1951, No. 21619/51. Class 112. Buttonhole-sewing attachments. -A workjogging attachment comprises a frame 20, for attachment to the presser-bar, with its longitudinal centre-line x intersecting the path of the needle 14, a presser-foot shank 27 carrying a work-engaging foot 25, and mechanism for imparting movements transverse to the line x to a point on the shank 27 ; the shank is connected to the frame at a second point, for controlling the amplitude of movement of the foot 25, provided by a block 54 which is adjustably clamped to the frame 20 at any point along a line parallel to the line x including a point laterally opposite to the needle and which is slidably engaged by guide surfaces 50 formed on the presser-foot shank substantially parallel to the line x. In the form shown the mechanism comprises the usual needle-bar-actuated cam-wheel 33, oscillating lever 35 pivoted to the frame at 34, pinion 39 carried by the lever, and pattern rack 41 carried by the presser-foot shank 27, the rack being interchangeable with others of different form; the block 54 is adjustable along a slot 53 formed in the frame 20, and the guide surfaces 50 are formed by the sides of a slot formed in a lateral extension 48 of the shank 27. As the left-hand end of the shank 27 is oscillated laterally the shank also has a slight reciprocation on the block 54, the resulting motion of the foot 25 being an oscillation about a point on the line x opposite the block 54. When the block is opposite the needle the axis of oscillation of the foot coincides with the needle, so that a straight seam is sewn; lateral recesses 58 in the slot 53 permit the block 54 to be adjusted laterally so that the foot is carried sideways to enable a straight seam offset from the line x on either side of it to be made, for example in the production of bound buttonholes, the recesses 58 being arranged on an arc centred on the point of engagement between the pinion 39 and rack 41, so that the movement of the part of the work beneath the needle is absolutely perpendicular to the line x.
Patent GB-831114-A (GB)
Title: Arrangements for increasing the flow of fluids through orifices, pipes, conduits and apparatus
IPC: G05D7/01
Filed: 1956-01-08
Abstract: 831,114. Regulating fluid flow; nozzles. MASON, H. L. Jan. 8, 1956, No. 21632/54. Classes 69 (3) and 135. The rate of fluid flow through pipes &c. is increased by the provision of a chamber a, Fig. 1, having an orifice b so that the fluid forms a vena contracta within the chamber, a conical portion e joining the orifice with the parallel chamber walls; the, latter may be provided with radial openings, not shown. In a modification, a frusto-conical chamber is disposed between the parallel-sided chamber and the orifice. With circular conduits the chamber is in the form of a cylinder having a cross-section one third greater than that of the orifice and of a length equal to or less than the orifice diameter. In another modification, a further frustoconical chamber k, Fig. 4, is added between chamber b and the orifice s and additional fluid enters through slightly coned passages c to join the main stream. A shield u, which may conform to the configuration of the tank or container, serves to separate the fluid entering the orifice axially, by way of chamber a, from that entering radially via the passages c. The device may be detachable and made of moulded plastic material with means for securing it to a drum or other container. In a further modification, the primary chamber a, Fig. 6, is adjustably threaded in the main body c to which latter the second chamber b is adjustably attached by screws e in compressible plastic sleeves g, to permit of variation in the size of a passage f for the radial introduction of fluid. A flexible diaphragm i, secured to the body c, surrounds the outlet k from the chamber a and forms the upper part of the passage f. Further fluid enters the primary chamber a through inclined ports d. The outlet k is larger than the orifice m. In a final modification, the first chamber incorporates rows of slightly coned openings in its wall whilst the outlet from this chamber is smaller than the orifice itself.